Leaves turning red! Powdery mildew!

Leaves turning red! Powdery mildew!

Sat Jul 09, 2011 3:11 pm

I have a four year old service berry that is suffering. The leaves are turning red, I think I have powdery mildew and there is white fluff stuck ton the leaves. The bark looks fine. Should I spread compost at it's base and hope for the best? I live in Toronto